Jest Job Vacancies

251 to 275 of 365 Jest Jobs

Front End / Back End Web Developer

London, England, United Kingdom
JAM IT Consultancy Ltd
Knowledge and experience working with accessibility standards. Experience in developing and containerizing applications with Docker and using orchestration such as Kubernetes. Experience in using test tools such as Cypress, Jest, React Testing Library, or Selenium Web Driver. Able to understand the impact of functionality on customers/appreciate customer needs. Logical approach to problem-solving. Ability to manage complex tasks More ❯
Posted:

Software Engineer, Frontend

London, England, United Kingdom
JR United Kingdom
in TypeScript, React, and frameworks like NextJS Familiarity with state management libraries (Zustand, Redux, MobX, etc.) Experience with GraphQL/REST APIs Experience with testing tools such as Vitest, Jest, Playwright Understanding of CI/CD practices and deployment pipelines Nice to have: Experience with design systems and component libraries Experience with Headless CMS platforms Knowledge of responsive design principles More ❯
Posted:

Full Stack Engineer

Glasgow, United Kingdom
Eden Scott
. Experience in Agile development environments using modern DevOps practices. A degree in Computer Science/Software Engineering or equivalent industry experience. Experience with writing automated tests (e.g., NUnit, Jest). Experience working with relational and non-relational databases (e.g., SQLServer, Postgres, MongoDB, CosmoDB). About Amici: Founded in 2005, Amici provides a cloud-based purchasing and inventory management platform More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior React Native Developer

Hasselt, Limburg, Belgium
AVIOBOOK
React using TypeScript are experienced in building mobile applications with React Native using TypeScript, Gradle and Cocoapods are experienced in Redux and Mobx for state management are experienced in Jest and Cypress for unit and integration testing are experienced in working with REST APIs and OpenAPI documentation are able to integrate REST APIs and WebSockets into the application are able More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Senior TypeScript Engineer

London, England, United Kingdom
Gentrack
developing commercial software using TypeScript/Javascript Solid professional experience and deep expertise in React.js and Node.js Experience working in cloud environments, AWS is highly preferred Experience testing with Jest writing Unit Test; Also, experience with Cucumber is desirable What we offer in return: • Personal growth - in leadership, commercial acumen and technical excellence • To be part of a global, winning More ❯
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Senior Software Engineer (React Native)

Bristol, England, United Kingdom
Hybrid / WFH Options
Hargreaves Lansdown
via REST API and/or GraphQL Work with React Native’s new architecture , applying best practices for scalability and performance Write unit and integration tests using tools like Jest , Detox , and Testing Library Optimize the performance of mobile applications Implement and manage state management solutions (e.g., Redux , Mobx ) Collaborate with backend teams and designers to ensure consistency and high More ❯
Posted:

Customer Support Engineer

London, England, United Kingdom
Kaedim
expectations. Collaborate with the design team and manage MySQL databases, ensuring efficient and effective data storage and retrieval. Conduct unit testing and end-to-end testing using Cypress and Jest to ensure application stability and reliability. Understand and incorporate customer feedback into design and development decisions, ensuring a high level of customer satisfaction. Communicate complex ideas and technical concepts clearly More ❯
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Software Engineer - Agentic

Sheffield, Yorkshire, United Kingdom
Hybrid / WFH Options
Pendo
engineering principles, including data structures, algorithms, and software design Solid understanding of web application architecture, including APIs, HTTP requests, databases, caching, and related concepts Used testing frameworks such as Jest to write and maintain unit tests for your code, and browser automation tools such as Cypress or Playwright for test automation Preferred Qualifications Bachelor's or Master's degree in More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Technical Lead

United Kingdom
Hybrid / WFH Options
NearTech Search
TypeScript, Node.js, React, and GraphQL MongoDB Atlas AWS-based infrastructure using ECS, Lambda, and CloudWatch CI/CD pipelines with GitHub Actions, Terraform, and IaC Testing via Cypress (E2E), Jest/Vitest (unit) Observability with tools like Sentry, Datadog, or New Relic You won’t be starting from scratch, the platform is already live and scaling, but there is real More ❯
Posted:

Technical Lead

Chelmsford, England, United Kingdom
Hybrid / WFH Options
NearTech Search
TypeScript, Node.js, React, and GraphQL MongoDB Atlas AWS-based infrastructure using ECS, Lambda, and CloudWatch CI/CD pipelines with GitHub Actions, Terraform, and IaC Testing via Cypress (E2E), Jest/Vitest (unit) Observability with tools like Sentry, Datadog, or New Relic You won’t be starting from scratch, the platform is already live and scaling, but there is real More ❯
Posted:

Senior Frontend Developer at Elsewhen

United Kingdom
Hybrid / WFH Options
HipHopTune Media
previews. Familiarity with modern build tools: Vite, or similar. Experience with CI/CD pipelines for automated testing and deployment (Jenkins and GitHub Actions). Familiarity with testing tools: Jest, Chromatic/Percy, axe-core (for accessibility). Experience with end-to-end testing tools such as Playwright. Experience with Chart.js and/or similar charting technologies. Experience with the More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Frontend Engineer

London, England, United Kingdom
Hybrid / WFH Options
Fresha
create database schemas that represent and support business processes Technologies - Familiarity with TypeScript, Cordova, Native development for Android and/or iOS, RAIL Performance, PWA, SSR, Node, Cypress and Jest Full Stack - Full-stack experience (double bonus points if Ruby or Elixir!) This list is not exhaustive and there may be other activities you are required to deliver. What we More ❯
Posted:

Technical Lead

London, England, United Kingdom
Hybrid / WFH Options
Registers of Scotland
Frameworks : Spring Boot, Flask, React, Next.js DevOps : Jenkins, GitLab CI, Docker, Infrastructure as Code (CDK, CloudFormation, Ansible) Cloud : AWS (Lambda, API Gateway, S3, Aurora, IAM) QA : JUnit, Mockito, Cypress, Jest, React Testing Library, SonarQube Monitoring : Grafana, Kibana, CloudWatch, X-Ray Click 'Apply' to view the full advert and application process. Seniority level Seniority level Mid-Senior level Employment type Employment More ❯
Posted:

Principal UI Software Engineer

London, England, United Kingdom
Liquidnet
engineer in high-performance trading systems or similar domains. UI Libraries such as Material UI or Ant Design. CSS pre-processors such as SASS and LESS Testing frameworks e.g. Jest Performance profiling and optimisation Build tools such as Webpack Code quality and governance tools such as Sonarqube. Version control systems such as git i.e. gitlabs Strong communication and collaboration skills More ❯
Posted:

Backend Engineer

London, England, United Kingdom
Hybrid / WFH Options
MoonPay
payments industry What you will be working with/on Typescript React and NextJS Node.js TypeORM, TypeDI, TypeGraphQL and routing-controllers Google Cloud Platform Postgres Redis Bull DataDog GitHub Jest Most importantly , though, you will embody the core principles that everyone here at the MoonPay lives by. Our “BLOCK Values” are at the heart of everything we do - and they More ❯
Posted:

Senior Front End Engineer - React

London, England, United Kingdom
VML Enterprise Solutions
with SPA solutions, ideally for administrative CMS platforms, and integrating with 3rd party systems. Extensive experience with unit, E2E, and regression testing (Vitest, React Testing Library, Cypress).Experience with Jest is also valuable. Commercial experience using Git for Continuous Integration in large development teams. Solid understanding of Agile methodologies (Kanban and/or Scrum/sprint planning, story point estimation More ❯
Posted:

Frontend Engineer (Remote)

United Kingdom
Hybrid / WFH Options
InnovateHer
/UX framework (React preferred, but Svelte, Angular, or Vue also considered). Experience with state management libraries (e.g. Redux, Zustand, or similar). Proficient with testing frameworks (e.g. Jest, Cypress, Playwright) for unit, end-to-end, and automation testing. Experience working with RESTful APIs and web services integration. Strong understanding of accessibility standards (WCAG) and security best practices. Eligible More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Back End Developer

London, England, United Kingdom
JR United Kingdom
Join a fast-growing, purpose-driven tech for good company making a real impact on climate change. I'm looking for two Senior Backend developers with strong Node.js and TypeScript skills to help design and implement scalable solutions that support More ❯
Posted:

Senior Frontend Developer

Birmingham, England, United Kingdom
Hybrid / WFH Options
Synchro
Role: Senior Frontend Developer Tech: React, TypeScript, modern JS, CSS, Jest/Vitest/Cypress Location: Remote-first, with 1 monthly team meetup in Birmingham Salary: £70,000–£80,000 Our client is building the next generation of internal platforms for a global tech learning company- and this is your chance to help shape it from the ground up! They … AI to automate tedious processes and forecast success What you bring: Strong experience with React + TypeScript Solid grasp of HTML, CSS, performance, and accessibility Familiarity with testing tools (Jest, Cypress, etc.) Experience building scalable, user-friendly interfaces Clear communicator and collaborator 2-stage interview process, no coding task! Please reach out to Joely at Synchro to hear more More ❯
Posted:

Web / Mobile Developer

Southampton, Hampshire, South East, United Kingdom
Deerfoot Recruitment Solutions
and Ionic Translate UX designs and wireframes into polished front-end interfaces Develop and maintain shared UI components, including documentation via Storybook Write clean, maintainable, and testable code using Jest and React Testing Library Partner with backend developers for API integration and delivery Act as a subject matter expert in UI/mobile development within the wider digital team Key … experience in cross-platform mobile development for iOS and Android , ideally with Next.js Strong proficiency in React , Next.js , and Ionic Familiarity with Context API , GitHub , and testing tools like Jest Proven ability to troubleshoot deployment issues and optimise user performance Knowledge of software architecture and engineering best practices Desirable : Azure, .NET, CI/CD (YAML), accessibility standards Exposure to financial More ❯
Employment Type: Permanent
Posted:

Senior Front-End Engineer

United Kingdom
Creation Recruitment
and Experience: Current commercial experience with React and state-management libraries in an Agile environment Comfortable with Typescript Experience of CI/CD tools Experience with testing frameworks i.e. Jest/Enzyme/Cypress/Selenium Would be great if you have experience (but not essential) with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Mobile Developer

Newcastle Upon Tyne, Tyne And Wear, United Kingdom
Oak Engage limited
receive constructive feedback to ensure code quality. Maintain the app code quality through SDK and dependency updates Contribute to the resolution of support requests Expand the unit test suite (Jest) and integration test suite (Detox) Essential 2+ years React/React Native experience Firm grasp of the JavaScript/Typescript language including ES syntax features up to ES2020 (Array.flat, Object.fromEntries … third-party dependencies and debugging dependency conflicts Familiarity with Redux and its terminology Experience with developing an application against JSON APIs Strong familiarity with testing using an appropriate framework (Jest, Mocha, Detox, Selenium) Experience in working collaboratively as part of a team: version control, Pull Requests, scrum/kanban etc Desired Experience with development of iOS applications on MacOS Experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Frontend Developer

London Area, United Kingdom
trg.recruitment
Frontend Engineer (GreenTech) - Typescript, React.js, Tailwind CSS, RESTful API's, Testing - Cypress/Jest, Complex Design & Architecture, Problem Solving! We're hiring for a GreenTech scale up who have recently secured huge PE funding and are looking for a Frontend Engineer who's owned the delivery of complex internal and customer facing frontends! You'll have the opportunity to own More ❯
Posted:

Frontend Developer

City of London, London, United Kingdom
trg.recruitment
Frontend Engineer (GreenTech) - Typescript, React.js, Tailwind CSS, RESTful API's, Testing - Cypress/Jest, Complex Design & Architecture, Problem Solving! We're hiring for a GreenTech scale up who have recently secured huge PE funding and are looking for a Frontend Engineer who's owned the delivery of complex internal and customer facing frontends! You'll have the opportunity to own More ❯
Posted:

Entry Level React Software Engineer with Security Clearance

Sarasota, Florida, United States
Ed Wallach Search Group
of experience using React 16+ with TypeScript • Experience working with both RESTful API's and GraphQL • Experience with recent versions of React, especially React Hooks and Context • Experience with Jest and Cypress for unit and end-to-end testing • Understands what an ETL pipeline is • Understands databases and SQL • TS/SCI active clearance required. U.S. Citizenship required Nice to More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:
Jest
10th Percentile
£47,500
25th Percentile
£55,938
Median
£65,000
75th Percentile
£88,125
90th Percentile
£134,099